Shut-off valves / Angle shut-off valves Advantages - Recommended 1) Recommended for use as a throttle 2) True bubble-free shut-off if equipped with a resilient seat. 3) Suitable for frequent operation Shortcomings 1) Significant pressure drop in the process 2) Cost is higher than other types of valve High disc and seat structure 1) Elastic (soft) seat disc is the preferred structure. But for high-temperature piping systems, high-precision throttling, or fluid media with abrasive and other applications, the alloy metal is a better choice. PTFE is the best resilient valve material for most pipe systems, but rubber is more flexible in cold water environments. 2) Plug-in disc / seat: Metallic alloys with high hardness are commonly used. They are particularly suitable for applications where precise throttling is required and the fluid medium temperature exceeds the Teflon temperature limit (260oC) or the fluid includes abrasive. Cast iron stop valves are usually semi-insert bronze disc / seat structure. 3) Automatic steam cut-off check valves and angle cut-off valves are suitable for medium-pressure steam piping systems where the sliding action of the semi-plug-in disc allows the valve to function as a shut-off valve, throttle valve and check valve. Shut-off valves / Angle shut-off valves Advantages - Recommended 1) Recommended as a throttle valve 2) True bubble-free shut-off if equipped with a resilient seat. 3) Suitable for frequent operation Shortcomings 1) Significant pressure drop in the process 2) Cost is higher than other types of valve High disc and seat structure 1) Elastic (soft) seat disc is the preferred structure. But for high-temperature piping systems, high-precision throttling, or fluid media with abrasive and other applications, the alloy metal is a better choice. PTFE is the best resilient valve material for most pipe systems, but rubber is more flexible in cold water environments. 2) Plug-in disc / seat: Metallic alloys with high hardness are commonly used. They are particularly suitable for applications where precise throttling is required and the fluid medium temperature exceeds the Teflon temperature limit (260oC) or the fluid includes abrasive. Cast iron stop valves are usually semi-insert bronze disc / seat structure. 3) Automatic steam cut-off check valves and angle cut-off valves are suitable for medium-pressure steam piping systems where the sliding action of the semi-plug-in disc allows the valve to function as a shut-off valve, throttle valve and check valve.
We are manufacturer of Fully Automatic Concrete Mixing Plant in China, if you want to buy Cement Concrete Mixing Plant ,Electric Control Concrete Batching Plant,Stationary Concrete Batching Plant please contact us.This station is suitable for industrial, civil construction, roads, railways, bridges, electric power, water conservancy, port terminals, airports and other projects. It can be used as a mixing equipment for commercial concrete production, and combined various forms different specifications Concrete Mixing Plant according to the needs of different users.
The pl series batching machine used in this product consists of a feeding mechanism, a weighing system, an electrical control system and other components. The structure of the batching machine is arranged in a "good" shape, which is conveyed by a belt conveyor and weighed by a plurality of sensors for accurate measurement.
This product Screw Conveyor is a double pitch blade that reduces the degree of compression of the material during transport. It is equipped with high-quality medium-hanging bearings and is easy to install.
This product( Concrete Batching Plant ) is equipped with the storage, batching, conveying, stirring, control and other devices of various raw materials required for precast concrete, and various aggregates, powders, admixtures, water, etc. A complete set of equipment for supplying concrete in a concentrated manner than by a mixer.
Common Commercial Concrete Batching Plants
Fully Automatic Concrete Mixing Plant,Cement Concrete Mixing Plant,Electric Control Concrete Batching Plant,Stationary Concrete Batching Plant
Shandong Zeyu Heavy Industry Science and Technology Co.,Ltd. , https://www.zeyuconcretemachine.com